Luminescence properties of Eu(III) complex/polyvinylpyrrolidone electrospun composite nanofibers

  • Xiaoping Zhang
  • , Shipeng Wen
  • , Shui Hu
  • , Qi Chen
  • , Hao Fong
  • , Liqun Zhang
  • , Li Liu

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Herein, we report that an innovative type of 1D nanomaterials, electrospun composite nanofibers (diameters ∼175 (±25 nm) containing a complex of Eu(TTA) 3phen in a matrix of polyvinylpyrrolidone (PVP), was prepared and characterized, and their luminescent properties were evaluated. The study revealed that, when the content of Eu(TTA) 3phen was low (i.e., less than 23 wt %), the Eu(TTA) 3phen was predominantly distributed in the composite nanofibers as molecular clusters and/or nanoscaled particles with sizes smaller than 10 nm; this substantially enhanced intermolecular interactions between individual Eu(TTA) 3phen molecules and the neighboring chain segments of PVP. The Judd-Ofelt theory was used to study the effect of the dispersion of Eu(TTA) 3phen on the local chemical environment of Eu 3+ ions. The composite nanofibers demonstrated a significant improvement of luminescent efficiency compared with neat Eu(TTA) 3phen.

Original languageEnglish
Pages (from-to)3898-3903
Number of pages6
JournalJournal of Physical Chemistry C
Volume114
Issue number9
DOIs
StatePublished - 11 Mar 2010
Externally publishedYes

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